TY - JOUR
T1 - Morphology-controlled synthesis of Ag nanoparticle decorated poly(o-phenylenediamine) using microfluidics and its application for hydrogen peroxide detection
AU - Wang, Lei
AU - Ma, Shenghua
AU - Yang, Bin
AU - Cao, Wenwu
AU - Han, Xiaojun
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grant Nos. 21273059 , 21003032 ), the Fundamental Research Funds for the Central Universities (Grant No. HIT. KISTP. 201407 ), State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology) (Grant No. 2014DX09 ), Harbin Science and Technology Research Council (Grant No. 2014RFXXJ063 ) and the Open Research Fund of the State Key Laboratory of Electroanalytical Chemistry (Grant No. SKLEAC201313 ). We also thank Dr. Dan Zhang for the assistance with SEM and EDS mapping analysis.
Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/5/5
Y1 - 2015/5/5
N2 - Shear rate was utilized for the morphology-controlled synthesis of silver nanoparticle decorated poly(o-phenylenediamine) (AgNPs-PoPD) using microfluidics. The morphology of AgNPs-PoPD, such as bundles of belts, twisted fibers, clusters, and microspheres, as well as the composition of AgNPs-PoPD clusters can be easily controlled by changing shear rates, which may provide a new potential method for the property control of materials. The phase diagram of AgNPs-PoPD morphology against reactant flow rate was obtained. The formation mechanism of different morphology of AgNPs-PoPD were analyzed and discussed based on numerical simulations. A H2O2 sensor based on AgNPs-PoPD spheres was fabricated, due to its good catalytic activity toward the reduction of H2O2. The linear detection range is determined to be from 20μM to 180μM, with the detection limit of 5.7μM at a signal-to-noise ratio of 3.
AB - Shear rate was utilized for the morphology-controlled synthesis of silver nanoparticle decorated poly(o-phenylenediamine) (AgNPs-PoPD) using microfluidics. The morphology of AgNPs-PoPD, such as bundles of belts, twisted fibers, clusters, and microspheres, as well as the composition of AgNPs-PoPD clusters can be easily controlled by changing shear rates, which may provide a new potential method for the property control of materials. The phase diagram of AgNPs-PoPD morphology against reactant flow rate was obtained. The formation mechanism of different morphology of AgNPs-PoPD were analyzed and discussed based on numerical simulations. A H2O2 sensor based on AgNPs-PoPD spheres was fabricated, due to its good catalytic activity toward the reduction of H2O2. The linear detection range is determined to be from 20μM to 180μM, with the detection limit of 5.7μM at a signal-to-noise ratio of 3.
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U2 - 10.1016/j.cej.2015.01.021
DO - 10.1016/j.cej.2015.01.021
M3 - Article
AN - SCOPUS:84961363714
SN - 1385-8947
VL - 268
SP - 102
EP - 108
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -